Note: You can use any controller, but this tutorial will only describe the steps to do it with a gamecube controller + official gamecube controller adapter. Anyway, only the first step is related with the controller. The other steps are the same for every controller.

Special thanks to Stary2001 and @KazoWAR for this awesome tool.

Requirements:

• A 3DS with CFW and a CIA installer
• Homebrew Launcher (latest version) or NTR CFW
• InputRedirection
  • for NTR (https://github.com/Kazo/InputRedirection/releases/tag/NTR-build)
  • for Homebrew Launcher (https://github.com/Kazo/InputRedirection/releases/tag/master-build)
• InputRedirection PC Client
  • for NTR (https://github.com/Kazo/InputRedirectionClient/releases/tag/NTR-build)
  • for Homebrew Launcher (https://github.com/Kazo/InputRedirectionClient/releases/tag/master-build)
• A PC with Windows
• A Gamecube controller
• Official gamecube controller adapter
• Wii U USB GCN Driver (http://m4sv.com/page/wii-u-gcn-usb-driver)
• XPadder (http://xpadder.com/) or a freeware alternative

Recomended:

• Wireless Network Watcher (http://www.nirsoft.net/utils/wireless_network_watcher.html)

Steps:
1. Install the driver of the Official gamecube controller adapter in your pc (there's a lot of tutorials on the internet, so please google) and run it.
2. Configure Xpadder (It's pretty easy with a noob-proof GUI). Remember the keys you choose for each button.

Now you have to choose an option

NTR CFW (recommended - better compatibility )
3. In your 3DS install InputRedirectionNTR.cia.
4. Run NTR CFW, press X+Y and select "Enable Debugger"
5. Run the installed CIA.

Homebrew Launcher (not recommended - worse compatibility)
3. In your 3DS install InputProc.cia and put the 3ds folder in the root of your sd card In
4. Run The Homebrew Launcher and launch input_loader.
5. Press start and then x to return to the home menu


6. Now in your PC, go to the PC Client and open InputRedirection NTR.exe (InputRedirection .exe if you chose the HBL option)
7. Press F1 to set your 3DS IP address (use wireless network watcher or ftpbrony to know it) and then ESC
8. Press F2 to set the key for each button of your 3ds (you can use Xpadder to remember what keys you used for the gamecube controller). To do it, first you have to press the pre-selected key, and then press the new key for each button. Once you're ready press ESC.
9. Test the controls (also, you can press F4 to show debug information).
10. Enjoy


Proof:

 

[Trinitro21]

made an account just to say this, I don't know if you figured out why this happened but yeah my Persona Q icon on my home screen is gone and replaced with a GO AWAY icon called input_proc. Hopefully JKSM can extract my Persona Q save and I can just reinstall the cia, but I'm thinking that'll just overwrite input_proc. Also FBI made no indication that it was deleting anything when I installed input_proc so Im worried PQ is still installed and taking up space without any way to remove it now.

I'd suggest using the NTR version, as the cia you have to install for that has a different unique id that doesn't conflict with Persona Q.

 

[filthypirate]

I'd suggest using the NTR version, as the cia you have to install for that has a different unique id that doesn't conflict with Persona Q.

Im using ReiNand tho

 

[Mentaloo]

HAHA yes! I got it to work on sm4sh! Thanks a ton for this this is amazing! It would be even better if we could add the New3ds-C stick!

 

[Sliter]

HAHA yes! I got it to work on sm4sh! Thanks a ton for this this is amazing! It would be even better if we could add the New3ds-C stick!

I think you can map on the pc the C Stik as the side smash? I still have to try it XD

 

[Mentaloo]

I think you can map on the pc the C Stik as the side smash? I still have to try it XD

mmh I don't see how.. keep me posted if you find out

 

[Billy Acuña]

Could this work with a Wiimote + Classic Controller?

 

[Intronaut]

Could this work with a Wiimote + Classic Controller?

If you can connect and use it in your pc then yes. In that case go straight to the step 2.

 

[Sliter]

If you can connect and use it in your pc then yes. In that case go straight to the step 2.

(ah, If I had a tatacon....)

 

[Cream Soda]

HAHA yes! I got it to work on sm4sh! Thanks a ton for this this is amazing! It would be even better if we could add the New3ds-C stick!

Any chance you can help me with this? I'm totally new to this myself and just installed NTR

 

[Billy Acuña]

Does someone tried this with NTRViewer?

 

[Sliter]

Does someone tried this with NTRViewer?

I wnat to try but first I need the usb connector for gc controller xD

 

[Billy Acuña]

I wnat to try but first I need the usb connector for gc controller xD

Any controller that can connect to PC might work.

 

[Intronaut]

I wnat to try but first I need the usb connector for gc controller xD

Any controller that can connect to PC might work.

yes. Actually you can even use your keyboard. I put "Gamecube controller" in the title because a lot of people wanted to use them in the 3ds.

 

[Cream Soda]

Yay I got it working. I'm seconding the request for c-stick addition. Would this be hard to add?

Edit:
Is there a way to adjust sensitivity? I can only run in smash bros (usually if you hold the stick lightly you walk and if you press it hard you run). I can't walk unfortunately

 

[FM360]

what is the input lag like on N3DS????

 

[Cream Soda]

For me, no input lag at all.

I have 200mbpsdown/20up and playing literally on top of my router though

 

[Joao_Shino]

So it works on Smash on Old 3ds with the NTR version? I tried it and the initial reboot took me out of NTR, I think

 

[RocketRobz]

So it works on Smash on Old 3ds with the NTR version? I tried it and the initial reboot took me out of NTR, I think

You just answered your question. The reboot closes NTR.

 

[hacksn5s4]

to get it working with smash on the old 3ds you would need to put the input thing in the cfw no you never need to open ntr on your 3ds to even use it

 

[Swiftloke]

to get it working with smash on the old 3ds you would need to put the input thing in the cfw no you never need to open ntr on your 3ds to even use it

Get out. This is a useful thread.